How to Make Royal Icing

40 Comments
5 from 54 votes
Jump to Recipe

We may earn a commission when you click on the affiliate links in this post.

Learn how to make Royal Icing (and flood icing) like a pro! This simple recipe is only 3 ingredients and makes it easy to decorate sugar cookies with smooth, glossy designs that look like little works of art.

Rainbow colors of bagged Royal Icing with gel colors and unfrosted sugar cookies.

Yes, You Can Do It!

Ever go to a bakery and see a display of beautifully decorated cookies and think, “Yeah, I could never do that”? Guess what? You’re wrong (and I mean that in the nicest way possible). That smooth, glossy, professional-looking icing you see on bakery cookies? Totally doable at home (and it’s not as scary as it seems). This royal icing (and flood icing) recipe is so easy to make, and it’s the magic trick for turning regular sugar cookies into edible works of art.

Pair this royal icing with our Cut Out Sugar Cookie recipe (the same one used for every cookie you see here) and you’ll be decorating bakery-worthy cookies in no time. No chilling required! Just roll, cut, bake, and decorate! These cookies hold their shape beautifully and taste just as good as they look. Trust me, this winning combo will have all your friends oohing, ahhing, and wondering when you secretly started a side hustle as a cookie decorator.

🩷 Heidi

Mastering the Basics: Royal Icing vs. Flood Icing

Before you can start making royal icing and flood icing, it’s important to know the difference between the two. In a nutshell, royal icing is more solid and used to make clean, defined edges and intricate designs, while flood icing is thinner and the secret to that glossy, seamless finish. When decorating sugar cookies with pretty designs, you need both. Luckily it’s not a lot of effort to turn royal icing into flood icing. The only difference is that flood icing has a little more water added to it. I will get into all of that below.

The Right Tools (and Ingredients) for the Job

Powdered sugar, water and meringue powder for Royal and Flood Icing.

Before we dive into the recipe, let’s set you up for success by getting the right ingredients and tools. Here are some of my must-have products, tips, and suggestions:

  • Powdered Sugar (aka confectioners’ sugar) – this will be the bulk of your icing. You must sift the powdered sugar if you want to have the perfect consistency. Otherwise you risk getting lumps and no one likes lumpy icing.
  • Meringue Powder -The key to this royal icing recipe! We recommend using meringue powder instead of raw egg whites for consistent results and food safety. Our favorite is “Genie’s Dream Premium Blend” for its flavor and texture — we can’t promise the same results with other brands.
  • Food Coloring – Don’t use the grocery store stuff. It will mess up your consistency. Get a high-quality gel food coloring from the craft store or from Amazon.
  • Piping Bags – We like these small disposables piping bags. They make cleanup a breeze.
  • Spray bottle – I have a spray bottle I use just for thinning icing. Any cheap spray bottle with a good spray nozzle will work. It’s my favorite consistency trick (more on this below).
  • Toothpicks – These are lifesavers for smoothing flood icing and popping air bubbles.
Three star shaped cookies with Royal Icing and Flood Icing.

How to Make Royal Icing Step-by-Step

Mixing bowl of powdered sugar and meringue powder for Royal Icing.
  1. Combine all ingredients in the bowl of a stand mixer (or a large bowl with a hand mixer). Mix on low speed with the whisk attachment until combined and the powdered sugar won’t puff everywhere.
Hand holding a mixing whisk of Royal Icing.
  1. Increase speed to medium-high and beat for about 5 minutes, until thick, shiny, stiff, and white. Peaks should stand straight up without flopping.
Gel paste colors next to a plastic mixing bowl of royal icing with spatula.
  1. For multiple colors, divide icing into bowls and stir in gel food coloring by hand with a rubber spatula.
Lifting the outline royal icing while pipping a star shaped cookie.
  1. Adjust icing to piping consistency (see notes), then transfer to piping bags and decorate cookies.
Three star shaped cookies with Royal Icing and Flood Icing.
  1. Let decorated cookies dry at room temperature for at least 12 hours before storing.
Spatula of Flood Royal Icing going into a bowl of Icing.
  1. For flood icing, add water to reserved royal icing a little at a time, stirring constantly, until a spoonful drips back into the bowl and blends in within a few seconds.

What To Do if Your Icing is Too Thick: The Spray Bottle Trick

If it’s not the right consistency for your liking, stir in a tiny bit of water, a little at a time (you can always add more but you can’t take it away). My favorite tip for getting just the right amount of water is to use a spray bottle. I know it sounds weird but a little water goes a long way. A few little spritz’s with a spray bottle can help you avoid a big headache!

Getting the Perfect Consistency for Royal Icing

Beginners often struggle with getting this just right. Too thick, and it won’t spread; too thin, and it might run off the edges. Testing the consistency before decorating can save you from some serious frustration later on! Depending on your project, you’ll need one of three consistencies:

Three royal icing consistencies on a plate next to a bag of royal icing.

The 3 main consistencies for royal icing:

  1. Piping (on the left in the image above) – Piping is very stiff and gets very hard after drying. This kind of consistency is great for using as mortar on gingerbread houses. It is also good for making transfers (which means making an icing design like a flower and transferring it to a cake or cookie after drying). To get this consistency you want to have stiff peaks that don’t flop over when you pull it up.
  2. Outline (in the middle in the image above) – The outline consistency is for, well, outlining. This will hold in your flood icing but won’t get too hard like the piping consistency. You can easily bite into it and it won’t be crunchy. It is great for sugar cookies and gingerbread cookies. To get this consistency you want to have a soft peak that gently flops over when pulled up, but not so soft that it absorbs back into the rest of the icing. You want it to still hold its form.
  3. Flood (on the right in the image above) – This is that beautiful, glossy, “fill” icing. It will flood in the areas that you have outlined. It is perfect for sugar cookies. For this flooding consistency, you want the icing to absorb back into itself in 3-4 seconds after pulling it up. It should make a thick puddle and then keep its shape.
Decorated Halloween Cookies in the shapes of ghosts, pumpkins, candy corns, cauldrons and spider webs.
Halloween Sugar Cookies Decorated with Royal Icing

How to Decorate Cookies with Royal Icing and Flood Icing

You can decorate sugar cookies like a pro– it’s easier than it looks! Place the icing in a plastic piping bag, snip off the tip, and outline the cookies. You can also use a reusable piping bag with a very small piping tip. Fill in the outlines on the cookies with the flood icing and then use a toothpick to fill in any little gaps. Add sprinkles for more dimension and design. Be creative and have fun!

PRO TIP: When piping the outline, lift the tip of the piping bag so it isn’t directly touching the cookie. You want it lifted away from the cookie so the icing lays down gently onto the cookie rather than going directly from the tip of the bag onto the cookie. This will give you smoother, prettier lines and more control over where the icing goes.

Plate of Christmas Sugar Cookies next to bags of royal icing and sprinkles.
Christmas Sugar Cookies Decorated with Royal Icing

Royal Icing and Cake

Royal icing serves a great purpose and is very beautiful, but not on a cake. At least not in large quantities. The only time you may want royal icing on a cake is if you make flowers or other decorations and transfer them to the cake after they harden. Even then, they really aren’t meant to be eaten, they are more for decoration. My mom made all of our wedding cakes and I remember her spending hours upon hours making beautiful royal icing flowers as embellishments and they all turned out beautiful. You can also use royal icing as a “glue” if you are wanting to attach the icing flowers or other embellishments onto the cake.

Pro Tips for Making Royal Icing

Start thick, thin slowly – It’s much easier to thin icing than to thicken it back up, so always start with a stiffer consistency and add water a drop at a time.

Keep icing covered – Royal icing dries quickly! Cover your mixing bowl with a damp paper towel when not in use, and seal piping bags tightly.

Color in advance – Gel colors deepen over time. If possible, mix colors a few hours ahead to get your final shade.

Test consistency before decorating – Drag a spoon through your icing and watch how fast it blends back in. For flood icing, aim for 3–4 seconds.

Dry completely before storing – Give cookies at least 12 hours to set at room temp to avoid smudges or sticking.

Frequently Asked Questions

How long does flooding icing take to dry?

For projects like gingerbread houses or panoramic eggs, you’ll want to let the icing dry overnight. But if you’re just wanting to decorate with layers on cookies, let it dry for at leas an hour in between.

Can you store royal icing and flood icing?

While fresh royal icing is best to use for cookies, you can store this for up to a week in the refrigerator. But it must be covered with a damp towel to avoid drying out and hardening. Putting icing in the freezer isn’t recommended, but putting finished cookies in the freezer in an airtight container AFTER the icing has set is totally fine.

Can royal icing be flavored?

Absolutely! Almond extract, vanilla extract, or coconut extracts are all delicious ways to flavor up royal icing. The meringue powder we use (see above) is already flavored so we typically don’t need to flavor it any more. If you do want to flavor your icing, just make sure to use CLEAR extracts so you don’t mess up the white color. Also, be really careful adding those extra liquids because even a little bit will change the consistency.

Fancy Alice in Wonderland sugar cookies
Cookie Decorating Credit: @HeidisSweetTooth (on Instagram)

Show Me Your Creations!

Now that you’ve got all the tips and tricks, it’s time to get baking and decorating. Trust me, with a little practice, you’ll be amazed at the beautiful cookies you can create. Don’t forget to tag us on Instagram @favoritefamilyrecipes to show us your beautiful creations! 🎨🖌️

Three star shaped cookies with Royal Icing and Flood Icing.

Royal Icing Recipe

5 from 54 votes
Learn how to make Royal Icing (and flood icing) like a pro! This simple recipe makes it easy to decorate sugar cookies with smooth, glossy designs that look like little works of art.
Prep Time 10 minutes
Cook Time 0 minutes
Setting Time 30 minutes
Total Time 40 minutes
Course cookies
Cuisine American
Servings 24 cookies

Ingredients

  • 2 pounds powdered sugar sifted
  • 5 tablespoons Genie's Dream Premium Meringue Powder
  • 2/3 cup water plus more for flood icing
  • gel food coloring (see notes above)

Instructions

  • Combine ingredients in the bowl of a stand mixer. If you don't have a stand mixer, you can use a large bowl and a hand mixer. Mix on low speed with a whisk attachment until ingredients are combined (enough that the powdered sugar won't fly everywhere).
    Mixing bowl with unmixed Royal and Flood Icing.
  • Turn up the speed to med/high and mix for 5 min or until very thick, shiny, stiff and white. You want the peaks of the icing to stand straight up without flopping over at all.
    Hand holding a mixing whisk of Royal Icing.
  • If you want to make several different colors, divide the icing into several different bowls and beat in the food coloring by hand with a rubber spatula.
    Gel paste colors next to a plastic mixing bowl of royal icing with spatula.
  • Once you get the correct consistencies for piping (see notes above), place icing in piping bags and start decorating!
    Red, pink, yellow, light green, dark green, blue and white bags of Royal Icing.
  • After icing your cookies, allow cookies to harden at room temperature for at least 12 hours before storing.
    Sugar cookies with royal icing and sprinkles

To Make Flood Icing:

  • Once you have used all of the royal icing you plan on using (or have set aside the amount of royal icing you need) add about a little of water at a time to the royal icing that you would like to make into flood icing, stirring constantly, until you get the right consistency.
    Hand squeezing a bottle of water into a bowl of thick Royal Icing.
  • You want to be able to pull up a spoonful of icing and have it drip back down into the bowl and combine with the rest of the icing within just a few seconds. You don't want to have it lay on top of the remaining icing for long, you also don't want it to absorb immediately. That means it is too thin. There is a fine line here, which is why you only want to add a little bit of water at a time so you don't overdo it. 
    Spatula of Flood Royal Icing going into a bowl of Icing.

Video

Notes

Storage Tips: Fresh royal icing is best, but you can refrigerate it for up to a week — just keep it covered with a damp towel to prevent it from drying out. Freezing the icing itself isn’t recommended, but you can freeze fully decorated cookies once the icing has completely set.
This recipe is a very special recipe. It comes from my best friend Heidi over at @HeidisSweetTooth (follow her on Instagram). She was kind enough to share this recipe with us. 
 

Nutrition Information

Calories: 122kcalCarbohydrates: 30gProtein: 1gFat: 1gSodium: 14mgPotassium: 11mgSugar: 30gCalcium: 1mgIron: 1mg

Love this recipe?

We want to hear from you! Please leave a review.

Rate and Review

More Frosting and Icing Recipes

Different cookies and confectionaries use different kinds of icing and frosting. This royal icing recipe is great for intricately decorating cookies, but depending on that you are making, you may be better off with a recipe meant for spreading or piping in larger quantities (such as on cakes and cupcakes). Find the one that is perfect for you and your next recipe:

How to Make Fondant
Vanilla Buttercream Frosting
Cream Cheese Frosting
Sugar Cookie Frosting
Chocolate Buttercream Frosting
Funfetti Frosting
Raspberry Frosting
Peanut Butter Frosting

Share This With the World

Pin

About the author

Heidi Rasmussen

More about Heidi Rasmussen
5 from 54 votes (43 ratings without comment)

Leave a comment

Your email address will not be published. Required fields are marked *

How many stars would you give this recipe?




Comments

  1. 5 stars
    So many amazing recipes. I will be using your site for all my baking this holiday season. I can’t wait to try not only the classics, but recipes I have never seen before. One thing for sure, it will be a Most Delicious Thanksgiving & Christmas.
    Blessing from Wisconsin

    1. Hi Denise! Thank you so much! If you need ideas for Thanksgiving or Christmas feel free to reach out, we can always direct you to some of our personal favorites! Thanks for the 5-stars!

    1. The simplest way is to add cocoa powder. But if you don’t want the chocolate flavor, mixing yellow food coloring with a little bit of red and blue should do it.

    1. It really depends on how lemony you want it to taste and also the quality and concentration of your lemon flavoring. Start very small adding just a drop or two at a time and work up to the flavor you are looking for. Hope this helps!

        1. Yes, I think 2 tablespoons would be a lot if you are using lemon extract. Lemon extract is much more concentrated of a flavor that lemon juice. I would just add a few drops at a time and check flavor and consistency each time. It much easier to add a little flavoring than it is to take it away.

  2. Hi! I’m about to try your recipe(s) for the first time and I was thinking I’d like to make the icing colors I want the night before and go ahead and put them in piping bags for the next morning. Do/have you ever do/done that? If that would work, would I need to take the bags out of the fridge and get them to room tip before using?
    Thanks so much!

  3. I can never get the correct consistency to flood my cookies. your recipe say plus more water for flood icing. how much more do you suggest?

    1. It depends on how much icing you have and how thick your original icing turned out. I start out just adding a teaspoon at a time until it reaches the consistency I want. I have also seen people use a spray bottle of water and just going one spray at a time. It takes some trial and error but once you get that perfect consistency once you’ll be able to recreate it!

  4. 5 stars
    Do you have a suggestion for a dye-free gel icing? I SO want to make vibrant Christmas cookies, but I’d rather do it without the chemical dyes.

    1. I haven’t used a dye free gel coloring, but I have seen Kroger brand ones that use natural dyes. I have also seen some at Target that were Watkins brand but used natural dye. Let us know if you find a good one!

  5. I tried my hand at this icing yesterday and I think it was a success! It was very tasty. My only concern is that I left the cookies over night to set and the icing is still wet. Did I add too much water? Is there any other tips to help with the drying? I’m completely new to baking but I think letting them set out would make the cookies stale quicker.

    1. It does sound like the icing was a little too wet. Do you live in a wet or humid climate? That can also affect the drying. If they are not dry after 24 hours, they are unlikely to dry at all.

    1. While fresh royal icing is best to use for cookies, you can store this for up to a week in the refrigerator. But it must be covered with a damp towel to avoid drying out and hardening. Meringue powder royal icing can last up to a month if kept refrigerated. Putting icing in the freezer isn’t recommended but putting finished cookies AFTER the icing has set is totally fine.

  6. 5 stars
    What if I accidentally add too much Merangue Powder? Will it ruin the frosting or make it too hard? How do I fix it?

  7. 5 stars
    Super simple! I stopped beating the mix when I got to glossy with floppy peaks, like a homemade marshmallow texture before it sets. I also mixed my egg white powder and powdered sugar together first, then added the milk. Otherwise my egg white powder gets sooo clumpy.

  8. 5 stars
    Looks like fun I am going to try to make tea cup and tea pot cookies for a bridal shower. ( practice first)

  9. I made the flood icing and it worked pretty well! The only down side about is is that is takes a FULL night to dry. I would definitely try this again though!

    1. 5 stars
      I love the heart cookie cutter! Where did you get it? Thank you for the very good descriptions on how to get the different types. Very informative!

  10. I am sorry that our site is frustrating! We try our best to make sure our site is user friendly. Our site is best viewed and navigated on a desktop or laptop computer and with Google Chrome.

  11. 5 stars
    I have enjoyed reading your blog and using some of the great recipes! Thanks for taking the time to give us wonderful recipes and tips!